Cheap flights from Saint Louis to Chicago O'Hare

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What’s the cost of a flight from Saint Louis to Chicago O'Hare?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Saint Louis and Chicago.

Choose a date to explore the best fares now.

If possible, avoid holiday periods: ticket prices tend to rise quickly and availability drops, especially on busy routes. Morning and evening flights are often in high demand too — book early to get a good fare.

Which airports serve Saint Louis and Chicago?

When planning a trip of about 415 km, it's a good idea to check flights from surrounding airports too.

  • Airports in Saint Louis: Saint Louis - Lambert is the only operational airport in the area.
  • Airports in Chicago: Chicago offers flights from 3 airports - Midway, O'Hare, Rockford.

The closest airport isn’t always the cheapest — it’s worth checking the alternatives too. In some cities, smaller airports offer lower fares than the main ones.

Flights from Saint Louis - Lambert to Chicago - O'Hare

Plan smarter: flights from Saint Louis to Chicago O'Hare

Find the flight that fits your plans with Jetcost. You can filter results by stops, agencies, budget, time of day, and airline — all in one search.

Other popular destinations

Travelers flying to United States also checked out: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Comparing offers from multiple agencies helps you find the best price for the same route. You can also spot exclusive deals from individual airlines right in the results list.
Frequently Asked Questions

Frequently asked questions about flights from Saint Louis to Chicago O'Hare.

How much does an airline ticket from Saint Louis to Chicago O'Hare cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from Saint Louis to Chicago O'Hare.

How far is Saint Louis from Chicago?

Saint Louis is about 415 km from Chicago.

What are the airports in Chicago?

Chicago has 3 airports: Midway, O'Hare, Rockford.

What are the airports in Saint Louis?

Saint Louis has one airport: Saint Louis - Lambert.

What are the most popular cities in United States?

The most popular cities in United States according to our users' searches are: Las Vegas, Los Angeles, Miami, New York City, Orlando.

When should I book a flight from Saint Louis to Chicago?

The best time to book a flight from Saint Louis to Chicago is 2 months in advance, while the worst time is 8 weeks in advance.

What is the cheapest month to fly from Saint Louis to Chicago?

This information is not available at the moment.

What is the most expensive month to fly from Saint Louis to Chicago?

This information is not available at the moment.

What is the best day of the week to fly from Saint Louis to Chicago?

This information is not available at the moment.